mpc/mpdn split: elmd is only needed for notifications

2 files changed, 171 insertions, 127 deletions

diff --git a/lib/media/jao-mpc.el b/lib/media/jao-mpc.el
index 89509ec..59021ca 100644
--- a/lib/media/jao-mpc.el
+++ b/lib/media/jao-mpc.el
@@ -1,9 +1,12 @@
-;;; jao-mpc-random-album.el --- random mpc albums    -*- lexical-binding: t; -*-
+;;; jao-mpc.el --- Using mpc client    -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2021  jao
 
 ;; Author: jao <mail@jao.io>
 ;; Keywords: convenience
+;; Version: 0.1
+;; Package-requires: ((emacs "27.1"))
+;; URL: https://codeberg.org/jao/lib/media
 
 ;; This program is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
@@ -20,110 +23,23 @@
 
 ;;; Commentary:
 
-;; Simple mpd control using elmpd and mpc.
+;; Simple mpd interaction using elmpd and mpc.
 
 ;;; Code:
 
-(require 'elmpd)
-(require 'jao-minibuffer)
 (require 'jao-lyrics)
+(require 'jao-random-album)
 
-(defvar jao-mpc--connection nil)
-(defvar-local jao-mpc--local-connection nil)
-(defvar-local jao-mpc--local-port nil)
+(defconst jao-mpc--albums "*MPC Albums*")
+(defconst jao-mpc--playlist "*MPC Playlist*")
 
-(defvar jao-mpc-host "localhost")
 (defvar jao-mpc-port 6600)
+(defvar-local jao-mpc--local-port nil)
 
-(defun jao-mpc-disconnect ()
-  (interactive)
-  (when jao-mpc--connection
-    (delete-process (elmpd-connection--fd jao-mpc--connection))
-    (setq jao-mpc--connection nil)))
-
-(defun jao-mpc--connect (name &optional cb)
-  (elmpd-connect :name name
-                 :host jao-mpc-host
-                 :port jao-mpc-port
-                 :subsystems
-                 (when cb `((player) . ,cb))))
-
-(defun jao-mpc-connect (&optional force)
-  (interactive)
-  (when force (jao-mpc-disconnect))
-  (unless jao-mpc--connection
-    (setq jao-mpc--connection (jao-mpc--connect "jao-mpc" 'jao-mpc--watcher))
-    (jao-mpc--watcher jao-mpc--connection 'player))
-  jao-mpc--connection)
-
-(defun jao-mpc--send (cmd cb)
-  (elmpd-send jao-mpc--connection cmd cb ))
-
-(defvar jao-mpc--play-status '())
-(defvar jao-mpc--current '())
-(defvar jao-mpc-minibuffer-str "")
-
-(defun jao-mpc--parse-retort (txt)
-  (let (res)
-    (dolist (e (split-string txt "\n" t " ") res)
-      (let ((e (split-string e ": " t " ")))
-        (when (and (car e) (cadr e))
-          (push (cons (car e) (cadr e)) res))))))
-
-(defun jao-mpc--update-status (next)
-  (let ((cb (lambda (_c ok txt)
-              (when ok
-                (setq jao-mpc--play-status (jao-mpc--parse-retort txt))
-                (when next (funcall next))))))
-    (jao-mpc--send "status" cb)))
-
-(defun jao-mpc--current-get (x &optional def)
-  (alist-get x jao-mpc--current def nil #'string=))
-
-(defun jao-mpc--status-get (x &optional def)
-  (alist-get x jao-mpc--play-status def nil #'string=))
-
-(defun jao-mpc--playing-p ()
-  (string= (jao-mpc--status-get "state" "") "play"))
-
-(defun jao-mpc--current-str ()
-  (let ((title (jao-mpc--current-get "Title"))
-        (album (jao-mpc--current-get "Album"))
-        (no (string-to-number (jao-mpc--current-get "Track" "0")))
-        (len (string-to-number (jao-mpc--status-get "playlistlength" "1")))
-        (artist (jao-mpc--current-get "Artist"))
-        (composer (jao-mpc--current-get "Composer")))
-    (format " %s%s %s%s%s"
-            (jao--put-face (if (zerop no) "" (format "%02d/%s " no len))
-                           'jao-themes-f02)
-            (jao--put-face title 'jao-themes-f00)
-            (jao--put-face artist 'jao-themes-f01)
-            (jao--put-face (if composer (format " [%s]" composer) "")
-                           'jao-themes-f01)
-            (jao--put-face (if album (format " (%s)" album) "") 'jao-themes-f11))))
-
-(defun jao-mpc--update-minibuffer ()
-  (setq jao-mpc-minibuffer-str
-        (if (jao-mpc--playing-p) (jao-mpc--current-str) ""))
-  (jao-minibuffer-refresh))
-
-(defun jao-mpc--update-current (&optional next)
-  (let ((cb (lambda (_c ok txt)
-              (when ok
-                (setq jao-mpc--current (jao-mpc--parse-retort txt))
-                (jao-mpc--update-minibuffer)
-                (cond (next (funcall next))
-                      ((and (null jao-mpc--current) jao-random-album-p)
-                       (jao-random-album-next)))))))
-    (jao-mpc--send "currentsong" cb)))
-
-(defun jao-mpc--watcher (_conn _subsys)
-  (jao-mpc--update-status #'jao-mpc--update-current))
-
-
-
-(defconst jao-mpc--albums "*MPC Albums*")
-(defconst jao-mpc--playlist "*MPC Playlist*")
+(defun jao-mpc--cmd (cmd)
+  (shell-command-to-string (format "mpc -p %s %s"
+                                   (or jao-mpc--local-port jao-mpc-port)
+                                   cmd)))
 
 (define-derived-mode jao-mpc-albums-mode fundamental-mode "MPC Albums"
   "Mode to display the list of albums known by mpd."
@@ -147,43 +63,39 @@
 
 (defun jao-mpc--add-and-play (&optional album)
   (interactive)
-  (let* ((album (or album (string-trim (thing-at-point 'line))))
-         (cmd (format "mpc findadd album \"%s\" && mpc play" album)))
-    (shell-command-to-string "mpc clear")
-    (shell-command-to-string cmd)))
+  (let ((album (or album (string-trim (thing-at-point 'line)))))
+    (jao-mpc--cmd "clear")
+    (jao-mpc--cmd (format "findadd album \"%s\"" album))
+    (jao-mpc--cmd "play")))
 
 (define-derived-mode jao-mpc-playlist-mode fundamental-mode "MPC Playlist"
   "Mode to display the list of playlist known by mpd."
   (read-only-mode -1)
   (delete-region (point-min) (point-max))
-  (setq-local jao-mpc--local-connecton jao-mpc--connection
-              jao-mpc--local-port jao-mpc-port)
-  (insert (shell-command-to-string (format "mpc -p %s playlist" jao-mpc-port)))
+  (setq-local jao-mpc--local-port jao-mpc-port)
+  (insert (jao-mpc--cmd "playlist"))
   (goto-char (point-min))
   (display-line-numbers-mode)
   (read-only-mode 1))
 
 (defun jao-mpc--playlist-goto-current ()
   (interactive)
-  (let ((jao-mpc--connection
-         (or jao-mpc--local-connecton jao-mpc--local-connecton)))
-    (jao-mpc--update-current
-     (lambda ()
-       (when-let (no (string-to-number (jao-mpc--current-get "Pos")))
-         (goto-char (point-min))
-         (forward-line no))))))
+  (let ((c (string-trim (or (jao-mpc--cmd "current") ""))))
+    (unless (string-blank-p c)
+      (goto-char (point-min))
+      (when (re-search-forward (regexp-quote c) nil t)
+        (beginning-of-line)))))
 
 (defun jao-mpc--playlist-play ()
   (interactive)
-  (shell-command-to-string (format "mpc -p %s play %s"
-                                   (or jao-mpc--local-port jao-mpc-port)
-                                   (line-number-at-pos))))
+  (jao-mpc--cmd (format "play %s" (line-number-at-pos))))
 
 (define-key jao-mpc-playlist-mode-map (kbd "n") #'next-line)
 (define-key jao-mpc-playlist-mode-map (kbd "p") #'previous-line)
 (define-key jao-mpc-playlist-mode-map (kbd "q") #'bury-buffer)
 (define-key jao-mpc-playlist-mode-map (kbd ".") #'jao-mpc--playlist-goto-current)
 (define-key jao-mpc-playlist-mode-map (kbd "RET") #'jao-mpc--playlist-play)
+(define-key jao-mpc-playlist-mode-map (kbd "C") #'jao-mpc-clear)
 
 (defun jao-mpc--playlist-buffer ()
   (with-current-buffer (get-buffer-create jao-mpc--playlist)
@@ -193,37 +105,37 @@
 ;;;###autoload
 (defun jao-mpc-stop ()
   (interactive)
-  (shell-command-to-string "mpc stop"))
+  (jao-mpc--cmd "stop"))
 
 ;;;###autoload
 (defun jao-mpc-toggle ()
   (interactive)
-  (jao-mpc--send "pause" nil))
+  (jao-mpc--cmd "pause"))
 
 ;;;###autoload
 (defun jao-mpc-play ()
   (interactive)
-  (jao-mpc--send "play" nil))
+  (jao-mpc--cmd "play"))
 
 ;;;###autoload
 (defun jao-mpc-next ()
   (interactive)
-  (jao-mpc--send "next" nil))
+  (jao-mpc--cmd "next"))
 
 ;;;###autoload
 (defun jao-mpc-previous ()
   (interactive)
-  (jao-mpc--send "previous" nil))
+  (jao-mpc--cmd "previous"))
 
 ;;;###autoload
 (defun jao-mpc-seek (delta)
   (interactive "nDelta")
-  (jao-mpc--send (format "seekcur %s%s" (if (> delta 0) "+" "") delta) nil))
+  (jao-mpc--cmd (format "seekcur %s%s" (if (> delta 0) "+" "") delta)))
 
 ;;;###autoload
 (defun jao-mpc-clear ()
   (interactive)
-  (jao-mpc--send "clear" nil))
+  (jao-mpc--cmd "clear"))
 
 ;;;###autoload
 (defun jao-mpc-echo-current ()
@@ -245,18 +157,17 @@
 
 ;;;###autoload
 (defun jao-mpc-lyrics-track-data ()
-  (when-let* ((title (jao-mpc--current-get "Title"))
-              (artist (jao-mpc--current-get "Artist")))
-    (cons (substring-no-properties title) (substring-no-properties artist))))
+  (let ((c (string-trim (jao-mpc--cmd "current"))))
+    (unless (string-blank-p c)
+      (when (string-match "\\(.\\) - \\(.+\\)" c)
+        (cons (match-string 2 c) (match-string 1 c))))))
 
 ;;;###autoload
 (defun jao-mpc-setup ()
   (setq jao-lyrics-info-function #'jao-mpc-lyrics-track-data)
   (jao-random-album-setup #'jao-mpc--album-buffer
                           #'jao-mpc--add-and-play
-                          #'jao-mpc-stop)
-  (jao-mpc-connect)
-  (jao-minibuffer-add-msg-variable 'jao-mpc-minibuffer-str 1))
+                          #'jao-mpc-stop))
 
 (provide 'jao-mpc)
 ;;; jao-mpc.el ends here
diff --git a/lib/media/jao-mpdn.el b/lib/media/jao-mpdn.el
new file mode 100644
index 0000000..d707767
--- /dev/null
+++ b/lib/media/jao-mpdn.el
@@ -0,0 +1,133 @@
+;;; jao-mpdn.el --- Notifications using elmpd    -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021  jao
+
+;; Author: jao <mail@jao.io>
+;; Keywords: convenience
+;; Version: 0.1
+;; Package-requires: ((emacs "27.1") (elmpd "0.1.9"))
+;; URL: https://codeberg.org/jao/lib/media
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; React to mpd player status changes.
+
+;;; Code:
+
+(require 'elmpd)
+(require 'jao-minibuffer)
+
+(defvar jao-mpdn--connection nil)
+(defvar jao-mpdn-host "localhost")
+(defvar jao-mpdn-port 6600)
+(defvar-local jao-mpdn--local-port nil)
+
+(defun jao-mpdn--disconnect (conn)
+  (delete-process (elmpd-connection--fd conn)))
+
+(defun jao-mpdn--connect (name &optional cb)
+  (elmpd-connect :name name
+                 :host jao-mpdn-host
+                 :port jao-mpdn-port
+                 :subsystems
+                 (when cb `((player) . ,cb))))
+
+(defun jao-mpdn-disconnect ()
+  (interactive)
+  (when jao-mpdn--connection
+    (jao-mpdn--disconnect jao-mpdn--connection)
+    (setq jao-mpdn--connection nil)))
+
+(defun jao-mpdn-connect (&optional force)
+  (interactive)
+  (when force (jao-mpdn-disconnect))
+  (unless jao-mpdn--connection
+    (setq jao-mpdn--connection (jao-mpdn--connect "jao-mpc" 'jao-mpdn--watcher))
+    (jao-mpdn--watcher jao-mpdn--connection 'player))
+  jao-mpdn--connection)
+
+(defun jao-mpdn--send (cmd cb)
+  (elmpd-send jao-mpdn--connection cmd cb))
+
+(defvar jao-mpdn--play-status '())
+(defvar jao-mpdn--current '())
+(defvar jao-mpdn-minibuffer-str "")
+
+(defun jao-mpdn--parse-retort (txt)
+  (let (res)
+    (dolist (e (split-string txt "\n" t " ") res)
+      (let ((e (split-string e ": " t " ")))
+        (when (and (car e) (cadr e))
+          (push (cons (car e) (cadr e)) res))))))
+
+(defun jao-mpdn--update-status (next)
+  (let ((cb (lambda (_c ok txt)
+              (when ok
+                (setq jao-mpdn--play-status (jao-mpdn--parse-retort txt))
+                (when next (funcall next))))))
+    (jao-mpdn--send "status" cb)))
+
+(defun jao-mpdn--current-get (x &optional def)
+  (alist-get x jao-mpdn--current def nil #'string=))
+
+(defun jao-mpdn--status-get (x &optional def)
+  (alist-get x jao-mpdn--play-status def nil #'string=))
+
+(defun jao-mpdn--playing-p ()
+  (string= (jao-mpdn--status-get "state" "") "play"))
+
+(defun jao-mpdn--current-str ()
+  (let ((title (jao-mpdn--current-get "Title"))
+        (album (jao-mpdn--current-get "Album"))
+        (no (string-to-number (jao-mpdn--current-get "Track" "0")))
+        (len (string-to-number (jao-mpdn--status-get "playlistlength" "1")))
+        (artist (jao-mpdn--current-get "Artist"))
+        (composer (jao-mpdn--current-get "Composer")))
+    (format " %s%s %s%s%s"
+            (jao--put-face (if (zerop no) "" (format "%02d/%s " no len))
+                           'jao-themes-f02)
+            (jao--put-face title 'jao-themes-f00)
+            (jao--put-face artist 'jao-themes-f01)
+            (jao--put-face (if composer (format " [%s]" composer) "")
+                           'jao-themes-f01)
+            (jao--put-face (if album (format " (%s)" album) "") 'jao-themes-f11))))
+
+(defun jao-mpdn--update-minibuffer ()
+  (setq jao-mpdn-minibuffer-str
+        (if (jao-mpdn--playing-p) (jao-mpdn--current-str) ""))
+  (jao-minibuffer-refresh))
+
+(defun jao-mpdn--update-current (&optional next)
+  (let ((cb (lambda (_c ok txt)
+              (when ok
+                (setq jao-mpdn--current (jao-mpdn--parse-retort txt))
+                (jao-mpdn--update-minibuffer)
+                (cond (next (funcall next))
+                      ((and (null jao-mpdn--current) jao-random-album-p)
+                       (jao-random-album-next)))))))
+    (jao-mpdn--send "currentsong" cb)))
+
+(defun jao-mpdn--watcher (_conn _subsys)
+  (jao-mpdn--update-status #'jao-mpdn--update-current))
+
+
+;;;###autoload
+(defun jao-mpdn-setup ()
+  (jao-mpdn-connect t)
+  (jao-minibuffer-add-msg-variable 'jao-mpdn-minibuffer-str 1))
+
+(provide 'jao-mpdn)
+;;; jao-mpdn.el ends here